Problem with --page-breaks-before

pepak · 10-24-2009, 03:22 PM

At the moment I am running Calibre 0.6.13 (I know there's a 0.6.19 out, but I can't run it as I don't have VC90 runtime installed and it refuses my attempts to install it, and in any case I can't find anything relevant in the changelog). I am having trouble with ebook-convert.exe's --page-breaks-before parameter - it just doesn't work for me. In older versions of Calibre (I guess some 0.6.7 or something like that), I used

Code:

ebook-convert.exe book.htm book.lrf --page-breaks-before=//h2

and it would indeed insert a pagebreak before every H2 tag. In 0.6.13 the parameter seems to be ignored and the only way to get a pagebreak is through --chapter-mark=pagebreak. The problem is, of course, that not all of my H2's are chapters, and vice versa.

pepak · 10-24-2009, 03:39 PM

Interesting: If I use a lot more complicated XPath instead:

Code:

--page-breaks-before="//*[re:test(name(), '^h2', 'i')]"

I get my page breaks where I want them. (For the inquiring minds: of course I use my h2 tags in lower-case; that 'i' is just something I add to all my regexps by default.)

kovidgoyal · 10-24-2009, 04:04 PM

//h:h2

pepak · 10-24-2009, 04:17 PM

Why is that? The tutorial says that "//h2" should match any h2's wherever in the document tree they are. What does the "h:" prefix mean?

kovidgoyal · 10-24-2009, 04:43 PM

h: stands for html

The tutorial is out of date (needs to be updated for 0.6)

pepak · 10-24-2009, 04:50 PM

OK. Thanks for clarification.

10-24-2009, 03:22 PM	#1
pepak Guru Posts: 610 Karma: 4150 Join Date: Mar 2008 Device: Sony Reader PRS-T3, Kobo Libra H2O	Problem with --page-breaks-before At the moment I am running Calibre 0.6.13 (I know there's a 0.6.19 out, but I can't run it as I don't have VC90 runtime installed and it refuses my attempts to install it, and in any case I can't find anything relevant in the changelog). I am having trouble with ebook-convert.exe's --page-breaks-before parameter - it just doesn't work for me. In older versions of Calibre (I guess some 0.6.7 or something like that), I used Code: ebook-convert.exe book.htm book.lrf --page-breaks-before=//h2 and it would indeed insert a pagebreak before every H2 tag. In 0.6.13 the parameter seems to be ignored and the only way to get a pagebreak is through --chapter-mark=pagebreak. The problem is, of course, that not all of my H2's are chapters, and vice versa.

10-24-2009, 03:39 PM	#2
pepak Guru Posts: 610 Karma: 4150 Join Date: Mar 2008 Device: Sony Reader PRS-T3, Kobo Libra H2O	Interesting: If I use a lot more complicated XPath instead: Code: --page-breaks-before="//*[re:test(name(), '^h2', 'i')]" I get my page breaks where I want them. (For the inquiring minds: of course I use my h2 tags in lower-case; that 'i' is just something I add to all my regexps by default.)

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10-24-2009, 04:04 PM	#3
kovidgoyal creator of calibre Posts: 45,171 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	//h:h2

10-24-2009, 04:17 PM	#4
pepak Guru Posts: 610 Karma: 4150 Join Date: Mar 2008 Device: Sony Reader PRS-T3, Kobo Libra H2O	Why is that? The tutorial says that "//h2" should match any h2's wherever in the document tree they are. What does the "h:" prefix mean?

10-24-2009, 04:43 PM	#5
kovidgoyal creator of calibre Posts: 45,171 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	h: stands for html The tutorial is out of date (needs to be updated for 0.6)

10-24-2009, 04:50 PM	#6
pepak Guru Posts: 610 Karma: 4150 Join Date: Mar 2008 Device: Sony Reader PRS-T3, Kobo Libra H2O	OK. Thanks for clarification.

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